Window-fastener



(No Model.) 2 sheets-sheet 1.

, M. FOWLER. DOW PASTBNBR. No. 524,803. `Patented Aug. 21, 1894.

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(No Mdem.)

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WINDOW FASTBNBR.

No. 524,803.' Patented Aug. 21, 1894.

@It l UNITEDI STATES- PATENT OFFICE.

CHARLES M. FOWLER, OF LOWELL, MASSACHUSETTS.

WINDow-l-nsTI-:NEn

SPECIFICATION forming part of Letters Patent No. 524,803, dated August2.1, 1894. Application led April 30, 1894- Serial No. 509,437. (Nomodel.)

.To @ZZ whom may concern:

Be it known that I, CHARLES M. FOWLER, a citizen of the United States,and a resident of Lowell, in the county of Middlesex and State ofMassachusetts, have invented new and useful Improvements in WindowFasteners, of which the following, taken in connection with theaccompanying drawings, is a specification.

This invention relates to improvements in window fasteners and it hasfor its object to lock the window sashes together either in a closed orpartially open position as well as preventing the sashes from rattlingwhen closed and effectually keeping out the cold air from coming inbetween the sashes when in such closed position.

The device is easily operated from the inside of the room at the sametime asit serves as an effectual safe guard preventing any one from theoutside to open or in any manner to interfere with this my improvedwindow fastener.

The invention is carried out as follows, reference being had to theaccompanying drawings, wherein- Figure 1, represents a top plan View ofthe invention shown in position which I term crosslocked. Fig. 2,represents a section on the line 2-2 shown in Fig. 1. Fig. 3, representsa section on the line 3 3 shown in Fig. 1. Fig. 4, represents a sectionon the line 4-4 shown in Fig. 1. Fig. 5, represents a side elevation ofthe invention in an unlocked position to permit one sash to be movedbythe other. Fig. 6, represents a detail top View of the pivot platesecured to the top portion of the outer sash. Fig. 7, represents abottom view of said pivot plate. Fig. 8, represents a top plan Vview ofthe invention shown in what I term side locked position. Fig. 9,represents a front elevation of Fig. 8 shown in dotted lines theposition for unlocking the fastener; and Fig. 10, represents a frontelevation of a pair of window sashes shown as secured together by myimproved fastener in such a position as to leave Ventilating spacesabove and below, or above and below said sashes.` v t v Similar lettersrefer to similar parts wherever they occur on the diderent parts of thedrawings.

In Fig. 10, A, A, represent the Stiles of the window frame in which theouter and inner sashes B, C, are vertically adj ustable as usual.

B', is the upper rail of sash B; and C is the lower rail of sash C.

C andB are the meeting rails of the respective sashes C and B as usual`On the top of the meeting rail B" is secured the pivot plate Dto whichis pivoted the fulcrum piece E having 'on its under side a projection e,passing through a slot hole d in said plateD and connected to the latterby means of a headed screw E as shown in Figs. 2, 3 and 7. To saidfulcrum piece E is pivoted at e the link F the other end of whichispivoted at g to the locking link'G as shown. The link G has at its freeend a lateral flattened shank- G terminating as a preferably circularhead G as shown in the drawings.

To the top of the meeting rail C is secured the lock plate H having apreferably inclined 4notch or recess H connected to a circulartransverse perforation H" as shown in Fig. 4. In addition to suchinclined notch end perforation, the lock plate H has an opening hcommunicating with an enlarged transverse perforation h having a lockinglip hfat or near its upper end as shown in Fig. 4.

The lever F has on its under side a projection f adapted to be broughtin contact with the inner edge of the plate H when the fastener is crosslocked as shown in Figs. 1, 2, 3 ande by which the meeting rails B C ofthe sashes B, C, are held together so as to prevent rattling of thesashes when so locked together as well as preventing drafts of air atsuch connection of the inner and outer sashes.

f is a strengthening rib on the under side of the lever F which rib isadapted to lie in contact with the under side of the link or lever Gwhen the invention is cross locked as shown in Figs. 1 and 2.

v The invention may be operated as follows: When it is desired to crosslock the sashes as shown in Figs. 1, 2, 3, and 4, the pivoted block E isretained in the position shown in said iigures and the lever F swunginward through the opening h in the lock block Hand moved roo Ilaterally below the projection h after which the lever G is swung inposition as shown in Figs. l, 2, 3 and land held in position byconlining it in the notch or recess hin the block H as fully shown insaid figures.

If it is desired to side lock the improved fastening the levers F, G,and the pivoted block E are swung to the positions shown in Figs. 8 and9, thereby holding the window sashes securely held and locked together;and in such position the projection f on the lever F extends over theupper edge of the lever G thereby preventing the latter from passing bylever F and thus locking the sashes together; and also preventing thepossibility of opening the window any distance unless the levers lF, G,are turned to the right.

If it is desired to unlock the lever G from the lock bolt H, all that isnecessary to do is to swing the levers F, G, to the position shown indotted lines in Fig. 9 when the attened shank G on the lever G mayeasily be disconnectedfrom the bolt H simply by sliding or swinging itout of the notch or recess H as shown.

If it is desired to adjust the outer or inner sashes without securingeither of the same in the llocked position I swing the levers F, G, to

the position shown in Fig. 5, when the innerand outer sashes may bemoved freely by each other for the purpose of Ventilating the room atsuch time when no locking of the sashes is required.

When it is desired to secure the upper and lower sashes in a partiallyopen position so as to ventilate the room at the top of the upper sash,at the bottom of the lower sash,

or at the top of the upper sash and bottom of the lower sash as shown inFig. l0 causing the sashes to be lockedin such partially open positionby swinging the lock-ing links F, G, into the vertical position as fullyrepresented in said Fig. 10; and in such position a projection orextension f on end of lever F prevents the levers F, G, from being swungtoo far beyond a vertical or nearly so position.

Having thus fully described the nature,con struction, and operation ofmy invention, I wish to secure by Letters Patent and claiml. The hereindescribed window fastener 5o consisting of a fulcrum pieceE pivoted toone of the sashes and a notched lock plate H se` cured to the other sashand having shoulder la combined with a link F pivoted to the piece E andhaving a locking projection f and a link G pivoted to the link Fsubstantially as and for the purpose set forth.

2. The herein'described window fastener consisting of a swinging fulcrumpiece F loosely journaled in a plate on one of the sashes,and a lockplate H secured to the other sash and having the notches h h and H' Hand shoulder h combined with a link F pivoted to the piece E and havingalocking projection f, and a link G pivoted to the link F and having aflattened projection G adapted to be introduced in the notch H andlocked into the enlargement H on the lock plate H substantially as andfor the purpose set forth.

3. The herein described window fastener consisting of a pivoted ful'crumpiece E on oneof the sashes and a notched locking plate H secured to theother sash and having shoulder h" combined with a link F pivoted to thepiece E and the link G pivoted to the link F and means substantially asdescribed for unlocking the fastening as well as for locking it crossway to or in a line locked in a partially `open position as herein withthe sashes and for holding the sashes set forth and for the purposespecified.

4. The herein described window fastener -consisting of a fulcrum piece Eon one of the Isashes and a notched locking piece H on the other sashand having shoulder h combined 'with a link F pivoted to the piece E andhaving a locking projection f and side ribf and `a link G pivoted to thelink F substantially as and for the purpose set forth.

Inv testimony whereof I have signed my name to this specification, inthe presence of two subscribing witnesses, on this 28th day of March, A.D. 1894.

CHARLES M. FOWLER.

Witnesses:

ALBAN ANDREN, LAURITZ N. MOLLER. v

